683305423 has 4 divisors (see below), whose sum is σ = 683648568. Its totient is φ = 682962280.

The previous prime is 683305409. The next prime is 683305439. The reversal of 683305423 is 324503386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 683305423 - 2¹⁷ = 683174351 is a prime.

It is a super-2 number, since 2×683305423² = 933812602202417858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683309423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168568 + ... + 172573.

It is an arithmetic number, because the mean of its divisors is an integer number (170912142).

Almost surely, 2^683305423 is an apocalyptic number.

683305423 is a deficient number, since it is larger than the sum of its proper divisors (343145).

683305423 is a wasteful number, since it uses less digits than its factorization.

683305423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343144.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 683305423 is about 26140.1113807880. Note that the first 3 decimals coincide. The cubic root of 683305423 is about 880.7884733332.

The spelling of 683305423 in words is "six hundred eighty-three million, three hundred five thousand, four hundred twenty-three".